CN208546528U - It is applicable in the rotational rheometer measuring system of magnetic liquid rheological behavior - Google Patents
It is applicable in the rotational rheometer measuring system of magnetic liquid rheological behavior Download PDFInfo
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- CN208546528U CN208546528U CN201821058184.7U CN201821058184U CN208546528U CN 208546528 U CN208546528 U CN 208546528U CN 201821058184 U CN201821058184 U CN 201821058184U CN 208546528 U CN208546528 U CN 208546528U
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Abstract
The utility model proposes a kind of rotational rheometer measuring systems for being applicable in magnetic liquid rheological behavior, comprising: shell；It is set to intracorporal first magnetic guiding loop of shell；It is set to intracorporal second magnetic guiding loop of shell；It is set to intracorporal first magnetism-isolating loop of shell；It is set to intracorporal second magnetism-isolating loop of shell；And it is set to the intracorporal annular permanent magnet of shell.The structure of the measuring system is designed according to the practical structures of magnetic fluid sealing, and closely similar with practical sealing structure, measurement result can directly reflect the rheological properties of magnetic liquid in seal clearance in magnetic liquid sealing structure.
Description
Technical field
The utility model relates to measuring system technical field, in particular to a kind of rotation for being applicable in magnetic liquid rheological behavior
Rheometry system.
Background technique
Rheometer is the important tool for measuring material flowing deformation characteristic, the design of measuring system for measurement precision with
Reliability has important influence.
Relevant rheometer is the demand for scientific research mostly, and the usually corresponding measuring system of use is certain reason
By model, such as parallel plate measuring system, cone plate measuring system, parallel cylinder measuring system, measurement be material characteristic.But
It is on the one hand to be difficult to know the accurate parameter of material local environment under actual condition, another party in actual engineer application
Environment locating for plane materiel material not fully meets the various ideals in theoretical model it is assumed that therefore according to traditional rheometry
The material flowing deformation characteristic that systematic survey goes out can not directly be inferred to the rheological properties that material shows in the application.
Magnetic liquid is a kind of nanoscale magnetic functional material.Magnetic fluid sealing is magnetic liquid one of application the most mature,
It is widely used in precision machinery, air seal, vacuum sealing, pressure seal, rotatory sealing etc..Magnetic fluid sealing part gap
Whether the rheological properties of middle magnetic liquid fail for magnetic fluid sealing voltage endurance capability, sealing, the resistance of magnetic fluid sealing part
The size of torque suffers from important influence.
However in the course of the research, since there are seal clearances small (about 0.1mm), magnetic field strength for magnetic fluid sealing part
Greatly, the problems such as magnetic liquid distribution situation is unknown is difficult to be inferred according to the material properties of common rheometry systematic survey
The rheological property of magnetic liquid of the magnetic fluid sealing part under actual operating conditions out.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.
For this purpose, the purpose of this utility model is that proposing a kind of rotational rheometer measurement for being applicable in magnetic liquid rheological behavior
System, which is designed according to the practical structures of magnetic fluid sealing, closely similar with practical sealing structure, measurement knot
Fruit can directly reflect the rheological properties of magnetic liquid in seal clearance in magnetic liquid sealing structure.
In order to achieve the above objectives, on the one hand the utility model proposes a kind of rotating flow for being applicable in magnetic liquid rheological behavior
Become instrument measuring system, comprising: shell；Be set to intracorporal first magnetic guiding loop of the shell, the first magnetic guiding loop excircle it is recessed
First sealing ring is installed, to form the first magnetic guiding loop with sealing ring in slot；It is set to intracorporal second magnetic guiding loop of the shell,
The second sealing ring is installed in the groove of the second magnetic guiding loop excircle, to form the second magnetic guiding loop with sealing ring；Setting
In intracorporal first magnetism-isolating loop of the shell, the plane of first magnetism-isolating loop is bonded with the upper plane of first magnetic guiding loop；If
It is placed in intracorporal second magnetism-isolating loop of the shell, the plane of second magnetism-isolating loop is bonded with the upper plane of the housing bottom,
In, the plane of second magnetic guiding loop is bonded with the upper plane of second magnetism-isolating loop；And it is set to the intracorporal ring of the shell
Shape permanent magnet, the plane of the annular permanent magnet are bonded with the upper plane of second magnetic guiding loop, wherein first magnetic guiding loop
Plane be bonded with the upper plane of the annular permanent magnet, to be injected into the annular permanent magnet inner ring in magnetic liquid to be measured
When, measuring probe is extend into the shell, and the position of the lower plane of the measuring probe exceeds second magnetic guiding loop
Lower plane, and do not contact the upper plane of the housing bottom.
The rotational rheometer measuring system of the utility model magnetic liquid rheological behavior, by according to magnetic fluid sealing
Practical structures be designed, solve because there are seal clearances small (about 0.1mm), magnetic field strength for magnetic fluid sealing part
Greatly, the rheology of the caused magnetic liquid being difficult to infer under actual operating conditions of the problems such as magnetic liquid distribution situation is unknown
The difficulty of property, realize can directly be reflected in magnetic liquid sealing structure according to its test result it is magnetic in seal clearance
The purpose of the rheological properties of liquid.
Further, the end cap being set on the shell, the end cap and the shell pass through the shell excircle
Screw thread be attached, and the lower plane of the end cap is bonded with the upper plane of first magnetism-isolating loop, wherein the measurement is visited
The centre bore that head passes through the end cap is extend into the shell.
Further, first magnetic guiding loop and second magnetic guiding loop are cirque structure, and inner surface is provided with
Pole tooth and tooth socket, the pole tooth number of each magnetic guiding loop are 2 to 10, and pole tooth width is greater than 0.3mm, and space width is greater than 0.5mm.
Further, the gap between first magnetic guiding loop and the pole tooth and the measuring probe of second magnetic guiding loop
For 0.1~0.2mm.
Further, the measuring probe, first magnetic guiding loop and second magnetic guiding loop are magnetic conductive material.
Further, the shell, first magnetism-isolating loop and second magnetism-isolating loop are non-permeable material.
The additional aspect of the utility model and advantage will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The utility model is above-mentioned and/or additional aspect and advantage from the following description of the accompanying drawings of embodiments will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the rotational rheometer measurement system for being applicable in magnetic liquid rheological behavior according to the utility model one embodiment
The structural schematic diagram of system.
Description of symbols:
It is applicable in the rotational rheometer measuring system 100 of magnetic liquid rheological behavior, shell 1, the first magnetic guiding loop 2, second leads
Magnet ring 3, the first magnetism-isolating loop 4, the second magnetism-isolating loop 5, annular permanent magnet 6, the first sealing ring 7, the second sealing ring 8,9 and of measuring probe
End cap 10.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
The rotation for being applicable in magnetic liquid rheological behavior proposed according to the utility model embodiment is described with reference to the accompanying drawings
Rheometry system is described.
Fig. 1 is the rotational rheometer measuring system for being applicable in magnetic liquid rheological behavior of the utility model one embodiment
Structural schematic diagram.
As shown in Figure 1, the rotational rheometer measuring system 100 for being applicable in magnetic liquid rheological behavior includes: shell 1,
One magnetic guiding loop 2, the second magnetic guiding loop 3, the first magnetism-isolating loop 4, the second magnetism-isolating loop 5 and annular permanent magnet 6, the first sealing ring 7, second are close
Seal 8, measuring probe 9 and end cap 10.
Wherein, shell 1.First magnetic guiding loop 2 is set in shell, and is equipped in the groove of 2 excircle of the first magnetic guiding loop
One sealing ring 7, to form the first magnetic guiding loop 2 with sealing ring.Second magnetic guiding loop 3 is set in shell, 3 outer circle of the second magnetic guiding loop
The second sealing ring 8 is installed in the groove in week, to form the second magnetic guiding loop 3 with sealing ring.First magnetism-isolating loop 4 is set to shell
Interior, the plane of the first magnetism-isolating loop 4 is bonded with the upper plane of first magnetic guiding loop 2.Second magnetism-isolating loop 5 is set in shell, the
The plane of two magnetism-isolating loops 5 is bonded with the upper plane of 1 bottom of shell, wherein the plane of the second magnetic guiding loop 3 and the second magnetism-isolating loop 5
Upper plane fitting.Annular permanent magnet 6 is set in shell, and the upper plane of the plane of annular permanent magnet 6 and the second magnetic guiding loop 3 is pasted
It closes, wherein the plane of the first magnetic guiding loop 2 is bonded with the upper plane of annular permanent magnet 6, to be injected into annular in magnetic liquid to be measured
When 6 inner ring of permanent magnet, measuring probe 9 is extend into shell 1, and the position of the lower plane of measuring probe 9 exceeds the second magnetic conduction
The lower plane of ring 3, and the upper plane of 1 bottom of shell is not contacted.The system 100 of the utility model embodiment is close according to magnetic liquid
The practical structures of envelope are designed, closely similar with practical sealing structure, and measurement result can directly reflect that magnetic liquid is close
In seal structure in seal clearance magnetic liquid rheological properties.
Further, in one embodiment of the utility model, the system 100 of the utility model implementation further include: end
Lid 10.Wherein, end cap 10 is set on shell 1, and end cap 10 is attached with shell 1 by the screw thread of shell excircle, and is held
The lower plane of lid 10 is bonded with the upper plane of the first magnetism-isolating loop 4, wherein the centre bore that measuring probe 9 passes through end cap 10 is extend into
In shell 1.
It should be noted that the magnetic liquid infused on 6 inner ring of annular permanent magnet can weigh when measuring probe 9 protrudes into shell 1
New distribution, is filled in the gap between measuring probe 9 and the first magnetic guiding loop 2,3 pole tooth of the second magnetic guiding loop.In addition, annular permanent magnet
The material of body 6 can select ferromagnetics, such as rubidium iron boron, be not specifically limited herein, and end face is the pole N (S) thereon, and lower end surface is
The pole S (N)；The magnetic line of force of annular permanent magnet 6 is formed into a loop by the first magnetic guiding loop 2, the second magnetic guiding loop 3 and measuring probe 9；Its
In, the type of magnetic liquid will be selected according to those skilled in the art's test request, herein without limitation.
Further, in one embodiment of the utility model, shell 1, the first magnetism-isolating loop and 4 second magnetism-isolating loops 5 are
For non-permeable material.
Wherein, non-permeable material can be stainless steel etc., and those skilled in the art can select as needed, herein
It is not specifically limited.
Further, in one embodiment of the utility model, the first magnetic guiding loop 2 and the second magnetic guiding loop 3 are annulus
Shape structure, and inner surface is provided with pole tooth and tooth socket, the pole tooth number of each magnetic guiding loop is 2 to 10, and pole tooth width is greater than
0.3mm, space width are greater than 0.5mm.
Further, in one embodiment of the utility model, the pole tooth of the first magnetic guiding loop 2 and the second magnetic guiding loop 3 with
Gap between measuring probe 9 is 0.1~0.2mm.
Further, in one embodiment of the utility model, measuring probe 9, the first magnetic guiding loop 2 and the second magnetic guiding loop
3 be magnetic conductive material.
Wherein, magnetic conductive material can be electrical pure iron etc., and those skilled in the art can select as needed, herein
Without limitation.
Specifically, the connection constituted between each section of the system is as follows:
First sealing ring 7 is mounted in the groove of 2 excircle of the first magnetic guiding loop, forms the first magnetic guiding loop 2 with sealing ring,
Second sealing ring 8 is mounted in the groove of 3 excircle of the second magnetic guiding loop, forms the second magnetic guiding loop 3 with sealing ring；Second every magnetic
Ring 5 is packed into shell 1, and the plane of the second magnetism-isolating loop 5 is bonded with the upper plane of 1 bottom of shell；The second magnetic conduction with sealing ring
Ring 3 is packed into shell 1, and the plane of the second magnetic guiding loop 3 with sealing ring is bonded with the upper plane of the second magnetism-isolating loop 5；Annular is forever
Magnet 6 is packed into shell 1, and the plane of annular permanent magnet 6 is bonded with the upper plane of the second magnetic guiding loop 3；First with sealing ring
Magnetic guiding loop 2 is packed into shell 1, and the plane of the first magnetic guiding loop 2 with sealing ring is bonded with the upper plane of annular permanent magnet 6；The
One magnetism-isolating loop 4 is packed into shell 1, and the plane of the first magnetism-isolating loop 4 is bonded with the upper plane of the first magnetic guiding loop 2 with sealing ring,
So far, the assembly of sample stage is completed；When measuring, magnetic liquid to be measured is injected into 6 inner ring of annular permanent magnet；End cap 10 is pacified
On shell 1, it is attached with shell 1 by the screw thread of 1 excircle of shell, 10 lower plane of end cap and the first magnetism-isolating loop 4
Upper plane fitting；The centre bore that measuring probe 9 passes through end cap 10 is extend into shell 1, and the position of the lower plane of measuring probe 9 is super
The lower plane of second magnetic guiding loop 3 out does not contact the upper plane of 1 bottom of shell.
It should be noted that the first sealing ring 7, the second sealing ring 8 can be rubber material, those skilled in the art can root
According to being selected, herein without limitation.
According to the rotational rheometer measuring system for being applicable in magnetic liquid rheological behavior that the utility model embodiment proposes, lead to
The rotational rheometer measuring system with magnetic liquid rheological behavior for crossing the utility model embodiment, by close according to magnetic liquid
The practical structures of envelope are designed, and are solved because there are seal clearances small (about 0.1mm), magnetic field strength for magnetic fluid sealing part
Greatly, the rheology of the caused magnetic liquid being difficult to infer under actual operating conditions of the problems such as magnetic liquid distribution situation is unknown
The difficulty of property, realize can directly be reflected in magnetic liquid sealing structure according to its test result it is magnetic in seal clearance
The purpose of the rheological properties of liquid.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (6)
1. a kind of rotational rheometer measuring system for being applicable in magnetic liquid rheological behavior characterized by comprising
Shell；
It is set to intracorporal first magnetic guiding loop of the shell, the first sealing is installed in the groove of the first magnetic guiding loop excircle
Circle, to form the first magnetic guiding loop with sealing ring；
It is set to intracorporal second magnetic guiding loop of the shell, the second sealing is installed in the groove of the second magnetic guiding loop excircle
Circle, to form the second magnetic guiding loop with sealing ring；
It is set to intracorporal first magnetism-isolating loop of the shell, the upper plane of the plane of first magnetism-isolating loop and first magnetic guiding loop
Fitting；
It is set to intracorporal second magnetism-isolating loop of the shell, the plane of second magnetism-isolating loop and the upper plane of the housing bottom are pasted
It closes, wherein the plane of second magnetic guiding loop is bonded with the upper plane of second magnetism-isolating loop；And
It is set to the intracorporal annular permanent magnet of the shell, the upper plane of the plane of the annular permanent magnet and second magnetic guiding loop
Fitting, wherein the plane of first magnetic guiding loop is bonded with the upper plane of the annular permanent magnet, to infuse in magnetic liquid to be measured
When entering to the annular permanent magnet inner ring, measuring probe is extend into the shell, and the lower plane of the measuring probe
Position exceeds the lower plane of second magnetic guiding loop, and does not contact the upper plane of the housing bottom.
2. the rotational rheometer measuring system according to claim 1 for being applicable in magnetic liquid rheological behavior, which is characterized in that
Further include:
The end cap being set on the shell, the end cap are connected with the shell by the screw thread of the shell excircle
It connects, and the lower plane of the end cap is bonded with the upper plane of first magnetism-isolating loop, wherein the measuring probe passes through the end
The centre bore of lid is extend into the shell.
3. the rotational rheometer measuring system according to claim 1 for being applicable in magnetic liquid rheological behavior, which is characterized in that
First magnetic guiding loop and second magnetic guiding loop are cirque structure, and inner surface is provided with pole tooth and tooth socket, each leads
The pole tooth number of magnet ring is 2 to 10, and pole tooth width is greater than 0.3mm, and space width is greater than 0.5mm.
4. the rotational rheometer measuring system according to claim 2 for being applicable in magnetic liquid rheological behavior, which is characterized in that
Gap between first magnetic guiding loop and the pole tooth and the measuring probe of second magnetic guiding loop is 0.1~0.2mm.
5. the rotational rheometer measuring system according to claim 1 for being applicable in magnetic liquid rheological behavior, which is characterized in that
The measuring probe, first magnetic guiding loop and second magnetic guiding loop are magnetic conductive material.
6. the rotational rheometer measuring system according to claim 1 for being applicable in magnetic liquid rheological behavior, which is characterized in that
The shell, first magnetism-isolating loop and second magnetism-isolating loop are non-permeable material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821058184.7U CN208546528U (en) | 2018-07-04 | 2018-07-04 | It is applicable in the rotational rheometer measuring system of magnetic liquid rheological behavior |
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| CN201821058184.7U CN208546528U (en) | 2018-07-04 | 2018-07-04 | It is applicable in the rotational rheometer measuring system of magnetic liquid rheological behavior |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679234A (en) * | 2018-07-04 | 2018-10-19 | 清华大学 | It is applicable in the rotational rheometer measuring system of magnetic liquid rheological behavior |
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2018
- 2018-07-04 CN CN201821058184.7U patent/CN208546528U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679234A (en) * | 2018-07-04 | 2018-10-19 | 清华大学 | It is applicable in the rotational rheometer measuring system of magnetic liquid rheological behavior |
| CN108679234B (en) * | 2018-07-04 | 2023-11-17 | 清华大学 | Rotary rheometer measuring system suitable for rheological property of magnetic liquid |
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